The AirTAC Airtac SC40 Standard Cylinder SC40X165S is a genuine double-acting standard air cylinder with a Ø40mm bore and 165mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X165S is a 40 mm bore, 165 mm stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod family. It produces 628 N of push force and 528 N of pull force when operated at 0.5 MPa, making it a capable mid-range actuator for general industrial automation.
This model includes a built-in magnet (-S suffix), allowing easy mounting of CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the barrel for contactless position detection. The 16 mm diameter piston rod features an M12x1.25 thread, and the adjustable air cushion at each end is 21 mm long, providing smooth deceleration without any mechanical locking function.
| Model | Airtac SC40 Standard Cylinder SC40X165S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 165 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×165 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The 165 mm stroke and 628 N push force at 0.5 MPa reliably actuates a diverter gate on a medium-speed conveyor line, with the built-in magnet providing end-of-stroke confirmation via a DMSG sensor.
Applies consistent clamping pressure in a CNC machining cell. The adjustable cushion prevents impact vibration, and the -S magnet allows the control system to verify clamp engagement before the spindle starts.
Deploys a positive stop at the end of a gravity roller lane. The 40 mm bore provides ample force to arrest a loaded pallet, and the CMSG magnetic sensor confirms the raised position for the upstream release logic.
For applications requiring more force, stepping up to the 50 mm bore SC50 series provides 982 N of push at the same 0.5 MPa pressure. If a shorter overall length is needed, the 32 mm bore SC32 series delivers 402 N. The 165 mm stroke is well within the 1200 mm maximum standard stroke for this bore size.
To ensure a drop-in replacement, match five key points: 40 mm bore, 165 mm stroke, PT1/4 port thread, the built-in magnet for sensor compatibility, and the basic (no bracket) mounting configuration. For strokes over 300 mm, always assess side-load conditions and consider an external guide or guided cylinder to protect the rod bearing from bending moments.
Quick checklist
At the standard operating pressure of 0.7 MPa, this cylinder generates 879 N extending and 738 N retracting. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes. The -S suffix in the model code SC40X165S denotes a built-in magnet specifically for this purpose. You can mount AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel's sensor groove to detect piston position without any additional brackets.
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